Dengue hemorrhagic fever (DHF) is a disease that is a problem in Indonesia, especially East Java. Sidoarjo is one of the city with high DHF cases in East Java with a total cases until 1,708 in 2016. One of the factors that support the increase in DHF cases is the availability of breeding site of Aedes. Research about breeding sites of Aedes in plants is limited. Vector control is often carried out only to ponds, air containers, and other artificial breeding sites, while in nature there are many plants that can to used breeding site such as phytotelmata. Phytotelmata are plants that can hold water in one of their bodies. This study aimed to determine the diversity of types and types of phytothelium, the physical condition of the water collected in the phytothelium and the Aedes species found in the phytotelmata. This research used descriptive observational. Determination of the sampling point using purposive sampling method. The results showed that there were eight species of phytotelmata which were used as breeding site for Aedes spp. in Sidoarjo, namely Musa paradisiaca, Pandanus amaryllifolius, Cocos nucifera, Neoregelia spectabilis, Bambusa sp. Neoregelia charm, Aechmea fasciata, and Xanthosoma sagittifolium. The Aedes species found were mostly Ae. albopictus. The average of air volume of the phytotelmata is 95.84 ml with water temperatures is 25-26oC and water pH is 6-7.

Repellency of celery essential oil (Apium graveolens L.) against Spodoptera frugiperda (Lepidoptera: Noctuidae) in thelaboratory. Essential oil is one of the ingredients that has repellent ability to herbivorous insects. Celery is one of plantscontaining essential oil which may also have the repellent ability. This study was aimed to determine the differences in therepellent ability of celery essential oils compounds that were taken from 3 different locations against S. frugiperda in thelaboratory. This research was arranged in a factorial completely randomized design (CRD) with two factors. The first factorwas the origin of the celery plants (Malang, Surabaya, and Lamongan) and the second factor was the concentration level ofessential oils (1000, 2000, and 3000 ppm) which was repeated three times. The reliability test was carried out using filter papermethod. The results showed that the essential oil extracted from celery originated from Malang with 3000 ppm concentrationhad the highest percentage level of repellency (level 5) that reached 93.33% of repellency. Location and concentration factorshad no different effect on S. frugiperda larvae repellency. There was no correlation between location and concentration on therepellency of S. frugiperda larvae.

Phytotelmata are plants that hold water in one or more parts of their body of plant. The water that is collected in the body parts of the phytotelmata is used as a breeding habitat for Aedes spp. This study aimed to determine the diversity of phytotelamata species in Kediri, which is one of the cities with the highest DHF cases in January 2019 in East Java. This research was descriptive observational. The sampling point was determined using purposive sampling method. The results showed that there were nine species of phytotelmata which were used as breeding sites for Aedes spp. in Kediri, namely Musa paradisiaca, Colocasia esculanta, Neoregelia spectabilis, Bambusa sp., Neoregelia charm, Aechmea fasciata, Xanthosoma sagittifolium, dan Bromelia sp. Species of Aedes founded were mostly Ae. albopictus. The average volume of water contained in one part of the phytotelmata is 90.11 ml with a water temperature ranging from 25-26oC and pH of water is 6-7.

Spodoptera litura F. is a plant pest organism (OPT) on shallot plants that must be prevented so that shallots become productive. One way to prevent it is good and not to damage the environment is the use of tumangsari plants in the form of celery plants. The purpose of the study was to determine the effectiveness of celery (Apium Graveolens L.) as a pest population of Spodoptera Litura F. Repellent Plants in the Cultivation of Shallots (Allium Ascalonicum L.) in Pesanggrahan Village. This research is an experimental study using a randomized block design (RAK) pattern, one way ANOVA test data analysis technique with 5% significance and post hoc follow-up test with the smallest difference analysis. The results showed that celery plants were effective in suppressing Spodoptera litura F. pest attacks. The most effective treatment was 4 PTS treatment which could reduce Spodoptera litura F. population and zinc intensity of Spodoptera litura F., which were 1.66 and 0, respectively. 15%.